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The first meaning of pin that mentions the dictionary of the Royal Spanish Academy (RAE ) refers to a very thin body metal nail , which is used to hold or hook something. For example: "Be careful that the dress still has pins because I haven't sewed it yet", "With a pin, the young man added the cockade to his shirt", "I'm going to raise the curtain a little with the help of pins so it doesn't touch the ground".

Pins usually have a head at one end and tip at the other. This allows them to hold something without falling. There are, however, special pins that have other shapes, such as hook pin , also called unmissable or safe. It is a pin that closes on itself and can not be opened easily, providing more secure grip.

He tie pin On the other hand, it is used to fix the tie to a shirt, preventing it from moving or losing its vertical position. Usually made of metal or leather, these pins often include ornamental details or have badges that reflect the user's affiliation to a particular group or organization .

The idea Pin, on the other hand, is used in the construction of several phrases of the colloquial language. When someone indicates that in one place "There is no pin", refers to that there is no space for any other person to enter. Something that is “Stuck with pins”On the other hand, it is precarious or unstable.

A beef cut , a fish and several species of plants They also receive the pin name according to the region, as detailed by the dictionary from RAE .

Pinfish

He Nerophis ophidion or, as it is commonly known, pinfish belongs to the family Syngnathidae, The one of the fishes Needle and seahorses. It is a species with a very thin body, which at first glance can give the sensation of being a worm, since its extension is between 15 and 20 centimeters, with exceptions that reach 30.

After a careful observation of a pinfish, it is clear that it is not a worm, especially when paying attention to its gill operculum and its head (very similar to that of a rocking horse at sea, one of his aforementioned relatives, partly because of the shape of his snout).

Its cousin, the mule needlefish, is the only species with which it is possible to confuse the pinfish, although the shape of the former is more rounded to the sides and considerably more slender. Both have a single dorsal fin, which is located from the middle of the back towards the base, although the snout of the needle Mule is more extensive.

The coloration of the male usually combines shades of green, although the abdomen tends to be yellowish; the female, on the other hand, exhibits bluish spots throughout her body , including the head, and has a more striking overall appearance. Anyway, when the spawning season arrives, which takes place in the middle of summer, the color increases in both sexes.

With regard to reproduction, the male must load in his incubator bag with the eggs deposited by the female, to fertilize them and carry them for approximately three weeks before giving birth to the young, which begin to swim as soon as they are born.

The pinfish feeds on plankton and is distributed along the entire coast of Finland, except in the north of the Gulf of Botnia, since the level of sanitation of its waters is insufficient for its developing .

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